((This is basically when Dio and Y/N were only 14 years old (they're currently 17) This is how their friendship became sour.))
.::FLASH BACK::.

     "DIOOOOOOOOOOOOOOOOOOOOOOOOOOOO, WHERES MY GOODMORNING HUG!" You shout, with your arms wide and a weirded out Dio looking at you.

      "Hurhurhur, right here ya doof!" He gave you a big hug, it had given you a comforting feeling when his big figure hugged you and your tiny figure was engulfed in a huge hug.

"Oh Y/N, you know [Some Girls Name] in science class?"

     "Yeah of course, she's a butt sometimes. =3="

     "Um, actually I really like her. I mean I know she's mean to you but she's super cool and-"

     "And you think she'd be perfect for you..." you continued for him. He nodded. You put on a false smile and said "Well if you really like her you should tell her. All you've done is talk about her for the past 2 months so I wouldn't see any harm in asking her to be your girlfriend!" You said, giving him an excited vibe.

      To be honest... you were secretly hoping she'd say no. You had had a huge crush on Dio. In fact sometimes you'd dream of a perfect life with him, you know, with a couple of little monsters (kids), a big house with a picket white fence, a family dog named Franchesco. You had always planned on having a perfect future. And in that future you always saw Dio in it with you.

     But one day you had said to yourself "Why are you obsessing over dumb stuff like that, stop having stupid childish dreams and grow up. You're just a 14 year old, and if you ever told him about that he'd just think you'd be smothering." So you tried to throw that dream away, and had supported Dio on all of his little breezes of love.

     You had tried showing interest in other guys, and always tried picturing your perfect life with them. But it was never the same. It was only perfect if Dio was in it. You kept trying and trying but your thoughts would always linger back to Dio. You began to think you were obsessed with him, but you knew that wasn't the case. After awhile of telling yourself 'it's fine, it's fine, I just like him a little bit and these pestering feelings will go away.' After awhile you started to realize maybe you didn't like Dio, maybe it was more.

     So you believed you loved him like a brother! But every time you heard him say he liked someone it hurt. You thought that was peculiar because a sister wouldn't be jealous if their brother had a girlfriend, they'd be happy for their brother. And you kept having the feeling of your heart being stabbed every time you heard his talk about [Some Girls Name]...

'Do I Love Dio?' You thought to yourself.

'No, I couldn't! I'm just confused. Yeah...'

'Just Confused'

...

     You then started to realize you loved Dio, more than anything. But you just couldn't accept it. It started driving you crazy and you started to realize little things. Like how his eyes lit up when he saw Ice Cream, or how he'd mess with his blonde hair when he was thinking, how he always came to school a minute before, how his strong jaw would clench when he didn't know the answer to the problem. You started to notice when the littlest thing was wrong, like if his part was a centimeter off or if he had forgotten about his bottom button and when he'd get something unusual at lunch or how he'd forget the littlest things like the name on his paper.

         You finally accepted that you loved him, but he would never like you back. You used to write love letters to him and texts but you'd never send them. The fear of rejection always stopped you. You started to think you'd never muster the courage. But you did one day, you were feeling amazing, the day was great, and what you were gunna tell Dio would make or break the day.

"Oh Dio, I gotta tell ya something!" You said to him, nervous and super scared.

"Actually Y/N I have something to tell you as well! Could I go first?" He asked, and you being in a good mood, nodded. "Well Y/N, I finally asked [SGN] to be my girlfriend." You gulped.

"A-and?"

"She said yes!" You felt your heart shatter to pieces. After all that time of gathering the courage to tell you he had crushed any confidence you had. You smiled at him.

"R-really?"

"Yeah! Anyways, what were you gunna say?" He asked, grinning like a dork.

"O-oh um, I just wanted to tell you I got a good grade on my math test but WOW! Th-that's great news Dio!" You hugged him, trying to hold back your tears, thinking to yourself ways to just forget your feelings.

"Hey Y/N, are you alright? Your voice keeps cracking."

"I-I'm fine, I just have a sore throat" you lied. And after talking for a bit you had went home, and ending up falling on your bed and crying yourself to sleep.

Now you couldn't accept your feelings, itd just get in the way of Dio's happiness. So you gave up on that, and thought maybe if you were better than Dio then you wouldn't like him so much. Maybe if you won at everything, you could forget about your feelings. So that's what you had done, you made everything a competition.

Every

Little

Thing.

'So... after 3 years I finally told him' you thought to yourself.

'I never thought I'd ever be in this situation with him.'

...

'He's such a Jerk'